Scott, Bill, author
Pustaka Binaman Pressindo, 1991
Buku Teks
Michael Soon Lee with Sensei Grant Tabuchi
American Management Association, 2007
eBooks
Robinson, Colin
Gunung Mulia, 1993
Buku Teks
Salacuse, Jeswald W.
Century Business, 1992
Buku Teks
Scott, Bill, author
Pustaka Binaman Pressindo, 1984
Buku Teks